Defraive (foolish proofing) is one of the best way to prevent the problem, and to avoid the demand of the customer, and to avoid the demand of the demand, the demand of the demand, and the demand of the demand. On the other hand, it is possible to prevent the loss of the operation of the person who is involved in the loss of the operation desk or the human body. 1 For example, the usual desk desk SIM cards, there are some special advantages, and it is not possible to prevent it from being damaged, and it is not possible to put it out, and the prevention of the new hand operation sim. 2 sources In the management of the business of the Japanese original Japanese chess and the chess game, the management of the enterprise for the empress is the basic concept of the Dakota, a new way of thinking in Japan, Shigeo Shingo, Shigeo Shingo. Devastation day is "pokake", "Poka" original, "idiot", immediate fool intention, "yoke" is a defensive intention, and it is "POW yoke", and "fool proofing". It is an immense or foolish way. Defensive
1. Have a structure that can't be wrong even if someone is negligent - no attention required.
2. Have a structure that can be done by laymen without experience and intuition
3. Have a structure that doesn't go wrong no matter who or when you work - no expertise or high level of skill is required.
3 Purpose editing
Once the workload of many things increases and the business becomes busy, more than the normal people can pay attention to and respond to the situation, there will be errors, even danger, resulting in the loss of life and property. In order to prevent errors and dangers, we can apply the mechanism to everything related, including the mechanical operation in the workplace, the use of products in general life, and even document processing. So that people with professional knowledge and full experience, and even laymen can operate intuitively and easily without making mistakes and stepping into dangerous situations. In some cases, the warning device can be used to remind the operator to take necessary measures and correct them immediately to avoid loss. However, in some cases, such as accidents, which are unavoidable, safety devices are used to reduce damage.
4 principle example editor
The design of computer memory module to prevent stumbling: to eliminate the causes of errors, such as breaking the plastic film on the tape to prevent re recording.
Insurance: joint or orderly execution of more than two actions to complete the work, such as: use two keys to open the safe. Automatic: automatic execution or non execution by using the principles of Physics (such as optics, electricity, mechanics), chemistry and mechanical structure. For example, when the floating ball of water tower rises to a certain height, the water supply will be cut off automatically. In addition to buoyancy, there are weighing devices, light sensors, timers, unidirectional devices, fuses, thermometers, pressure gauges, counters and so on.
Match: check the number by shape, mathematical formula, pronunciation and quantity, such as connector and account number. For example, the computer is a common but complex device, and most of the relevant components have the anti dazzle design in accordance with the shape. For example, the cavity on the memory module can be inserted only when it is installed in the correct direction.
Sequence: the process number shall be executed in sequence. For example, in the operation manual of model making, the part type and combination procedure are indicated by the number. Isolation: to protect certain areas from danger or error through area separation. It is common to place medicines in high places to prevent children from eating them by mistake. Copy: make use of copy to facilitate checking, such as copying and printing of unified invoice, rubbing of credit card and order reply check.
Marking: use line thickness, shape or color to distinguish for easy identification, such as using thick line box to indicate filling position, dotted line to indicate cutting position, red for emergency, green for passing, etc.
Warning: correct the abnormal situation through color, light and sound warning, such as oil meter, various warning lights and sound. Mitigation: use various methods to reduce the damage caused by errors, such as buffer and protective partition, safety belt and safety helmet.
5 application principle editing
The application principle of the "anti stupidity method" listed below is based on the common examples in our life. I hope it can be applied to my work by analogy.
1. Root cutting principle
The causes of errors will be eliminated fundamentally, so that no mistakes will occur.
(1) By the way of "exclusion"
For example: if there are important materials recorded on the tape and want to be preserved permanently, you can peel off a small piece of plastic sheet from one of the side defense re recording holes to prevent recording again.
2. Insurance principle
By using more than two actions that must be performed together or in sequence to complete a task
(1) By "common" action, it must be performed simultaneously
For example, when opening a bank safe, the customer's key and the bank's key must be inserted into the keyhole at the same time before the safe can be opened.
For example, in order to prevent the operator from being hurt by his hands accidentally, it is designed that both hands must press down the operation button at the same time to carry out the work.
3. Automatic principle
In order to avoid mistakes, it is necessary to restrict the execution or non execution of certain actions by various principles of optics, electricity, mechanics, mechanism and chemistry. At present, these automatic switches are very common, and they are also very simple "automation" applications.
(1) Control in the form of buoyancy
For example: there is a floating ball in the water tank of the toilet. When the water rises to a certain height, the floating ball pushes the pull rod to cut off the water source.
(2) In the way of "weight" control
For example: when the elevator is overloaded, the door cannot be closed, the elevator cannot go up and down, and the warning bell rings.
(3) This is done in the way of "light" control
For example, if there is not enough light for an automatic camera, the shutter can not be pressed down.
(4) In the way of "time" control
For example, the "drying mobile phone" in the bathroom can only be pressed for "one minute" at a time, and it will stop automatically when the time is up.
(5) This is done in the way of "direction" control
For example, the one-way fence for import and export in supermarkets can only be imported but not exported. Or they can only go out but not enter.
(6) This is done in the form of "current" consumption
For example: all the power switches in a home are equipped with a fuse. When the power is used excessively, the fuse will blow and the power will be cut off.
(7) This is done by means of "temperature" control
For example: the temperature control of the air conditioner in the home will stop automatically when the cooling degree is enough, and turn on automatically when the temperature rises.
(8) It is done in the way of "pressure" control
In the kitchen, when the pressure in the pot is too high, the "hydraulic valve" will be opened, so that the pressure and liquid outside the pot will not cause explosion crisis.
(9) This is done in the way of "counting" control
Example: to prevent forgetting to change the substrate
Before modification: the substrate was modified
